气象Issue(5):521-529,9.DOI:10.7519/j.issn.1000-0526.2014.05.001
“等熵思维”到“等熵位涡思维”回顾与讨论
Review and Discussion of Isentropic Thinking and Isentropic Potential Vorticity Thinking
摘要
Abstract
The diagnosis relationship between isentropic potential vorticity conservation and baroclinic dis-turbance development has been used in forecasting cyclone development and understanding the dynamic fields of water vapor imagery.“Isentropic potential vorticity thinking”is based on isentropic thinking of isentropic analysis.This paper first reviews and discusses dynamic interpretation and operational applica-tion of isentropic physical fields according to the basic principles of atmospheric dynamics.The contents include isentropic surface distribution with height,vertical velocity in isentropic coordinates,moisture transport on isentropic surface,upper-level fronts and jet stream characteristics on isentropic surface etc. Then,the physical fields and operational applicatoin on isentropic potential vorticity surface are discussed emphatically by comparing with physical fields on isentropic surface and quasi-geostrophic vertical motion equation on baroclinic two-layer model.The contents contain the definition of tropopause and its tempera-ture,pressure and humidity distribution,fronts and jet stream characteristics on tropopause isentropic po-tential vorticity surface,vertical velocity on tropopause isentropic potential vorticity surface,cyclone de-velopment and potential vorticity in accordance with “isentropic potential vorticity thinking”,and how to improve numerical weather prediction model by using water vapor imagery etc.关键词
等熵分析/等熵位涡思维/气旋发展/水汽图像Key words
isentropic analysis/isentropic potential vorticity thinking/cyclone development/water vapor imagery分类
天文与地球科学引用本文复制引用
周小刚,王秀明,陶祖钰..“等熵思维”到“等熵位涡思维”回顾与讨论[J].气象,2014,(5):521-529,9.基金项目
国家自然科学基金项目(40875029、41175043和41005002)及公益性行业(气象)科研专项(GYHY200906003)共同资助 ()